eventually they say the train will run from los angeles to san francisco. making the trip at 2 hours and 40 minutes at speeds up to 220 miles an hour. >>> in the meantime in the sky, two cases troubling authorities. the fbi is investigating who was behind lasers pointed at jets landing in san francisco, temporarily blinding the pilot. here's now lisa stark. >> reporter: they are distracting and dangerous. here a laser was pointed right at the police helicopter. >> got him. >> reporter: in that recent one in san francisco, two commercial pilots coming in to land had lasers aimed at them in may, two flights landing in salt lake city that were targets. lazers can controlly blind pilots. >> maybe you're not expecting it? >> oh, my goodness. >> reporter: that's a simulation, but laser expert showed us the real thing. at an airport outside washington, d.c., we pointed a simple $50 laser at a small plane a quarter mile away. this was the cockpit windshield. >> that's when the beam looks brightest, when it's coming at you. >> reporter: last year there were 3,592 re